US6086679A
Expired / Lapsed
US
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Deposition systems and processes for transport polymerization and chemical vapor deposition
Assignee: Canon USA Inc
•
Filing: 1997-10-24
•
Granted: 2000-07-11
•
Expires: 2017-10-24
Abstract
Abstract The described deposition systems are designed to accommodate new precursors and chemical processes used for transport polymerization and chemical vapor deposition. The systems consist primarily of a reactor, a liquid injector or gas mass flow controller, a cracker and a deposition chamber under sub-atmospheres pressure. The cracker utilizes one or more types of energy, including heat, photons, and plasmas. This invention is especially useful for preparing F-PPX (fluorinated poly(para-xylylenes) and other fluorinated polymer thin films for intermetal dielectric (IMD) and interlevel dielectric (ILD) applications in the manufacture of integrated circuits with features <0.25 mu m in size.
Inventors
- 👤 Chung J. Lee
- 👤 Hui Wang
- 👤 Giovanni Antonio Foggiato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:02
CPC Classifications
C; C23; C23C; C23C16/00; H; H10; H10P; H10P14/00; H10P14/60; H10P14/68; H10P14/683; H10P14/687; B; B05; B05D; B05D1/00; B05D1/60; C23C16/22; C23C16/26; C23C16/30; C23C16/40; C23C16/401; C23C16/44; C23C16/4412; C23C16/50; C23C16/505; C23C16/507; H10P14/63; H10P14/6326; H10P14/6328; H10P14/6334; H10P14/66; H10P14/668; B05D3/00; B05D3/06; B05D3/061
Claims Analysis
Total Claims: 97
Claim 1
Independent Claim
45 words
A transport deposition system (reactor) for making thin films comprising a cracker that dissociates precursors, a deposition area, a chuck adapted to hold a wafer, said chuck located in said deposition area, and a moveable flow pattern adjuster located between the cracker and the chuck.
Claim 2
Dependent Claim
45 words
A transport deposition system (reactor) for making thin films comprising a cracker that dissociates precursors, a deposition area, a chuck adapted to hold a wafer, said chuck located in said deposition area, and a moveable flow pattern adjuster located between the cracker and the chuck.
Claim 3
Dependent Claim
22 words
The transport deposition system of claim 1, wherein the moveable flow pattern adjuster is moveable in at least one of 3 dimensions.
Claim 4
Dependent Claim
26 words
The transport deposition system of claim 1, wherein the moveable flow pattern adjuster is moveable along the direction of flow from the cracker to the chuck.
Claim 5
Dependent Claim
28 words
The transport deposition system of claim 1, wherein the moveable flow pattern adjuster is moveable toward or away from at least one of the cracker and the chuck.
Claim 6
Dependent Claim
30 words
The transport deposition system of claim 1, wherein the moveable flow pattern adjuster is moveable in a direction perpendicular to the direction of flow from the cracker and the chuck.
Claim 7
Dependent Claim
48 words
The transport deposition system of claim 1, wherein the chuck has a wafer mounting surface and the cracker has an outlet port and wherein the moveable flow pattern adjuster is moveable in a direction across at least one of the wafer mounting surface and the cracker outlet port.
Claim 8
Dependent Claim
53 words
A transport deposition system for making thin films comprising a cracker that dissociates precursors, a deposition area, a chuck adapted to hold a wafer, said chuck located in said deposition area, and at least one of a moveable diffusion plate and a moveable flow pattern adjuster located between the cracker and the chuck.
Claim 9
Dependent Claim
53 words
A transport deposition system for making thin films comprising a cracker that dissociates precursors, a deposition area, a chuck adapted to hold a wafer, said chuck located in said deposition area, and at least one of a moveable diffusion plate and a moveable flow pattern adjuster located between the cracker and the chuck.
Claim 10
Dependent Claim
29 words
The transport deposition system of claim 7, wherein at least one of the moveable diffusion plate and flow pattern adjuster is moveable in at least one of 3 dimensions.
Claim 11
Dependent Claim
33 words
The transport deposition system of claim 7, wherein at least one of the moveable diffusion plate and flow pattern adjuster is moveable along the direction of flow from the cracker to the chuck.
Claim 12
Dependent Claim
35 words
The transport deposition system of claim 7, wherein at least one of the moveable diffusion plate and flow pattern adjuster is moveable toward or away from at least one of the cracker and the chuck.
Claim 13
Dependent Claim
32 words
The transport deposition system of claim 7, wherein the diffusion plate or flow pattern adjuster is moveable in a direction perpendicular to the direction of flow from the cracker and the chuck.
Claim 14
Dependent Claim
46 words
The transport deposition system of claim 7, wherein the chuck has a wafer mounting surface and the cracker has an outlet port and wherein the diffusion plate is moveable in a direction across at least one of the wafer mounting surface and the cracker outlet port.
Claim 15
Dependent Claim
55 words
A transport deposition system for making thin films comprising a cracker that dissociates precursors, a deposition area, a chuck adapted to hold a wafer, said chuck located in said deposition area, and a flow pattern adjuster and a diffusion plate, wherein at least two of the chuck, flow pattern adjuster and diffusion plate are moveable.
Claim 16
Dependent Claim
55 words
A transport deposition system for making thin films comprising a cracker that dissociates precursors, a deposition area, a chuck adapted to hold a wafer, said chuck located in said deposition area, and a flow pattern adjuster and a diffusion plate, wherein at least two of the chuck, flow pattern adjuster and diffusion plate are moveable.
Claim 17
Dependent Claim
56 words
A reaction chamber for transport polymerization comprising a non-metallic, transparent outer shell surrounding a cracker, a light source that provides radiant energy to the cracker to dissociate a precursor to generate a reactive intermediate, a hydrogen membrane, an inlet port for introducing precursors into the cracker, and an outlet port for removing product from the cracker.
Claim 18
Dependent Claim
56 words
A reaction chamber for transport polymerization comprising a non-metallic, transparent outer shell surrounding a cracker, a light source that provides radiant energy to the cracker to dissociate a precursor to generate a reactive intermediate, a hydrogen membrane, an inlet port for introducing precursors into the cracker, and an outlet port for removing product from the cracker.
Claim 19
Dependent Claim
28 words
The reaction chamber of claim 14, wherein the light source for providing radiant energy further comprises at least one of infrared radiation, ultraviolet radiation and vacuum ultraviolet radiation.
Claim 20
Dependent Claim
60 words
A reaction chamber for transport polymerization comprising a non-metallic, transparent outer shell surrounding a cracker, a light source that provides radiant energy to the cracker to dissociate precursors to generate reactive intermediates, an inlet port for introducing precursors into the cracker, a hydrogen membrane at least partially surrounding the cracker, and an outlet port for removing product from the cracker.
Claim 21
Dependent Claim
60 words
A reaction chamber for transport polymerization comprising a non-metallic, transparent outer shell surrounding a cracker, a light source that provides radiant energy to the cracker to dissociate precursors to generate reactive intermediates, an inlet port for introducing precursors into the cracker, a hydrogen membrane at least partially surrounding the cracker, and an outlet port for removing product from the cracker.
Claim 22
Dependent Claim
53 words
A reaction chamber for transport polymerization comprising an outer shell surrounding a cracker, an energy source that provides energy to the cracker to dissociate precursors to generate reactive intermediates, an inlet port for introducing precursors into the cracker, a moveable flow pattern adjuster and an outlet port for removing product from the cracker.
Claim 23
Dependent Claim
53 words
A reaction chamber for transport polymerization comprising an outer shell surrounding a cracker, an energy source that provides energy to the cracker to dissociate precursors to generate reactive intermediates, an inlet port for introducing precursors into the cracker, a moveable flow pattern adjuster and an outlet port for removing product from the cracker.
Claim 24
Dependent Claim
28 words
The reaction chamber of claim 17, wherein the energy source utilizes at least one of an RF source and a microwave source to provide energy to the cracker.
Claim 25
Dependent Claim
68 words
A reactor used for making fluorinated polymer thin films comprising: a source of precursor; a cracker that is adapted to process the precursor; a source of energy associated with the cracker to dissociate the precursor; wherein the source of energy includes one of infrared radiation, ultraviolet radiation, vacuum ultraviolet radiation, radio frequency generator, and a microwave generator, a hydrogen membrane, and a chuck adapted for supporting a wafer.
Claim 26
Dependent Claim
68 words
A reactor used for making fluorinated polymer thin films comprising: a source of precursor; a cracker that is adapted to process the precursor; a source of energy associated with the cracker to dissociate the precursor; wherein the source of energy includes one of infrared radiation, ultraviolet radiation, vacuum ultraviolet radiation, radio frequency generator, and a microwave generator, a hydrogen membrane, and a chuck adapted for supporting a wafer.
Claim 27
Dependent Claim
29 words
The reactor of claim 19, further comprising at least one of a flow pattern adjuster and a diffusion plate that controls the distribution of dissociated precursors onto the wafer.
Claim 28
Dependent Claim
52 words
A reaction chamber for transport polymerization comprising a non-metallic, transparent outer shell surrounding a cracker, a light source that provides incoherent excimer radiation to the cracker to dissociate precursors to generate reactive intermediates, an inlet port for introducing precursors into the cracker, and an outlet port for removing product from the cracker.
Claim 29
Dependent Claim
52 words
A reaction chamber for transport polymerization comprising a non-metallic, transparent outer shell surrounding a cracker, a light source that provides incoherent excimer radiation to the cracker to dissociate precursors to generate reactive intermediates, an inlet port for introducing precursors into the cracker, and an outlet port for removing product from the cracker.
Claim 30
Dependent Claim
63 words
A reactor used for making fluorinated polymer thin films comprising: a source of precursor; a cracker that is adapted to process the precursor; a means for generating energy in one of the vacuum ultraviolet range and in the range from ultraviolet to infrared, which means is associated with the cracker; a moveable flow pattern adjuster; and a chuck adapted for supporting a wafer.
Claim 31
Dependent Claim
63 words
A reactor used for making fluorinated polymer thin films comprising: a source of precursor; a cracker that is adapted to process the precursor; a means for generating energy in one of the vacuum ultraviolet range and in the range from ultraviolet to infrared, which means is associated with the cracker; a moveable flow pattern adjuster; and a chuck adapted for supporting a wafer.
Claim 32
Dependent Claim
18 words
The reactor of claim 21, further comprising means for controlling the distribution of dissociated precursors onto the wafer.
Claim 33
Dependent Claim
24 words
The reactor of claim 22, wherein the cracker is confined within a quartz vessel, and the energy source is one of IR and UV.
Claim 34
Dependent Claim
31 words
The reactor of claim 24, wherein the quartz vessel comprises one of a fused quartz crystal and a single quartz crystal and the energy source is one of IR and UV.
Claim 35
Dependent Claim
83 words
A reactor used for making fluorinated polymer thin films comprising: a source of precursor; a cracker that is adapted to process the precursor; said cracker having a quartz wall and a heat shield positioned externally to the wall, and the reactor including a chamber wall surrounding a heat shield; a means for generating energy in one ofthe vacuum ultraviolet range and in the range from ultraviolet to infrared, which means is associated with the cracker; and a chuck adapted for supporting a wafer.
Claim 36
Dependent Claim
83 words
A reactor used for making fluorinated polymer thin films comprising: a source of precursor; a cracker that is adapted to process the precursor; said cracker having a quartz wall and a heat shield positioned externally to the wall, and the reactor including a chamber wall surrounding a heat shield; a means for generating energy in one ofthe vacuum ultraviolet range and in the range from ultraviolet to infrared, which means is associated with the cracker; and a chuck adapted for supporting a wafer.
Claim 37
Dependent Claim
99 words
A reactor used for making fluorinated polymer thin films comprising: a source of precursor; a cracker that is adapted to process the precursor; said cracker having a wall being transparent to one of wavelengths of vacuum ultraviolet or wavelengths in the range of ultraviolet and wavelengths of infrared radiation; a heat shield positioned externally to the wall; a chamber wall surrounding the heat shield; a means for generating energy in one of the vacuum ultraviolet range and in the range from ultraviolet to infrared, which means is associated with the cracker; and a chuck adapted for supporting a wafer.
Claim 38
Dependent Claim
99 words
A reactor used for making fluorinated polymer thin films comprising: a source of precursor; a cracker that is adapted to process the precursor; said cracker having a wall being transparent to one of wavelengths of vacuum ultraviolet or wavelengths in the range of ultraviolet and wavelengths of infrared radiation; a heat shield positioned externally to the wall; a chamber wall surrounding the heat shield; a means for generating energy in one of the vacuum ultraviolet range and in the range from ultraviolet to infrared, which means is associated with the cracker; and a chuck adapted for supporting a wafer.
Claim 39
Dependent Claim
71 words
A transport deposition system (reactor) for making thin films comprising: a cracker that dissociates precursors, said cracker being confined within a vessel which is transparent to one of wavelengths of vacuum ultraviolet or wavelengths in the range of ultraviolet and infrared; a deposition area; a chuck adapted to hold a wafer said chuck located in said deposition area; and a moveable flow pattern adjuster located between the cracker and the chuck.
Claim 40
Dependent Claim
71 words
A transport deposition system (reactor) for making thin films comprising: a cracker that dissociates precursors, said cracker being confined within a vessel which is transparent to one of wavelengths of vacuum ultraviolet or wavelengths in the range of ultraviolet and infrared; a deposition area; a chuck adapted to hold a wafer said chuck located in said deposition area; and a moveable flow pattern adjuster located between the cracker and the chuck.
Claim 41
Dependent Claim
24 words
The reactor of claims 1, 14 or 22, wherein the cracker dissociates a precursor which is a source for generating aromatic fluorine containing radicals.
Claim 42
Dependent Claim
25 words
The reactor of claims 1, 14 or 22, wherein the cracker dissociates a precursor which is a source for generating aromatic fluorine containing bi-functional radicals.
Claim 43
Dependent Claim
16 words
The reactor of claims 1, 14 or 22, further comprising a means for cooling the chuck.
Claim 44
Dependent Claim
21 words
The reactor of claims 1, 14 or 22, wherein the cracker produces a bi-functional aromatic radical which polymerizes on the wafer.
Claim 45
Dependent Claim
19 words
The reactor of claims 1, 14 or 22, wherein the product of the cracker is polymerized on the wafer.
Claim 46
Dependent Claim
26 words
The reactor of claims 1, 14 or 22, further including an exhaust port leading to a vacuum pump, which exhaust port is associated with the chuck.
Claim 47
Dependent Claim
90 words
A transport deposition system (reactor) for making thin films comprising: a source of precursor; a cracker that dissociates precursors; a means for generating energy in one of the vacuum ultraviolet range and in the range from ultraviolet to infrared, which means is associated with the cracker and is enclosed within a transparent tube located inside the flow stream of precursor; a deposition area; a chuck adapted to hold a wafer, said chuck located in said deposition area, and a moveable flow pattern adjuster located between the cracker and the chuck.
Claim 48
Dependent Claim
90 words
A transport deposition system (reactor) for making thin films comprising: a source of precursor; a cracker that dissociates precursors; a means for generating energy in one of the vacuum ultraviolet range and in the range from ultraviolet to infrared, which means is associated with the cracker and is enclosed within a transparent tube located inside the flow stream of precursor; a deposition area; a chuck adapted to hold a wafer, said chuck located in said deposition area, and a moveable flow pattern adjuster located between the cracker and the chuck.
Claim 49
Dependent Claim
20 words
The reactor of claims 1, 14 or 22, further comprising a dimer filter placed between the cracker and the chuck.
Claim 50
Dependent Claim
35 words
The reactor of claims 1, 14 or 22, further comprising a dimer filter placed between the cracker and the chuck, wherein the dimer filter has pores in the range of 0.01 μm to 1 μm.
Claim 51
Dependent Claim
20 words
The reactor of claims 1, 14 or 22, further comprising a powder filter placed between the cracker and the chuck.
Claim 52
Dependent Claim
35 words
The reactor of claims 1, 14 or 22, further comprising a powder filter placed between the cracker and the chuck, wherein the powder filter has pores in the range of 0.01 μm to 1 μm.
Claim 53
Dependent Claim
16 words
The reactor of claims 1, 14 or 22, further comprising a filter for removing re-associated intermediates.
Claim 54
Dependent Claim
21 words
The reactor of claims 1, 14 or 22, further comprising a conically shaped guide extending from the cracker toward the chuck.
Claim 55
Dependent Claim
25 words
A reactor for transport polymerization, comprising a cracker, a chuck, a moveable flow pattern adjuster and a dimer filter between the cracker and the chuck.
Claim 56
Dependent Claim
25 words
A reactor for transport polymerization, comprising a cracker, a chuck, a moveable flow pattern adjuster and a dimer filter between the cracker and the chuck.
Claim 57
Dependent Claim
25 words
A reactor for transport polymerization, comprising a cracker, a chuck, a moveable flow pattern adjuster and a powder filter between the cracker and the chuck.
Claim 58
Dependent Claim
25 words
A reactor for transport polymerization, comprising a cracker, a chuck, a moveable flow pattern adjuster and a powder filter between the cracker and the chuck.
Claim 59
Dependent Claim
29 words
A reactor for transport polymerization, comprising a cracker, a chuck, a moveable flow pattern adjuster and a device for removing re-associated intermediates, located between the cracker and the chuck.
Claim 60
Dependent Claim
29 words
A reactor for transport polymerization, comprising a cracker, a chuck, a moveable flow pattern adjuster and a device for removing re-associated intermediates, located between the cracker and the chuck.
Claim 61
Dependent Claim
26 words
A reactor for transport polymerization, comprising a cracker, a chuck, a moveable flow pattern adjuster and a conical guide located between the cracker and the chuck.
Claim 62
Dependent Claim
26 words
A reactor for transport polymerization, comprising a cracker, a chuck, a moveable flow pattern adjuster and a conical guide located between the cracker and the chuck.
Claim 63
Dependent Claim
24 words
The reactor of claim 45, wherein the conical guide extends from about the periphery of the cracker to about the periphery of the chuck.
Claim 64
Dependent Claim
37 words
The reactor of claim 45, wherein the conical guide extends from about the periphery of the cracker to about the periphery of the chuck to direct gases from the cracker around the chuck toward an exhaust source.
Claim 65
Dependent Claim
29 words
A reactor for transport polymerization, comprising a cracker, a hydrogen membrane at least partially surrounding the cracker, a chuck, and a guide located between the cracker and the chuck.
Claim 66
Dependent Claim
29 words
A reactor for transport polymerization, comprising a cracker, a hydrogen membrane at least partially surrounding the cracker, a chuck, and a guide located between the cracker and the chuck.
Claim 67
Dependent Claim
23 words
The reactor of claim 48, wherein the guide extends from about the periphery of the cracker to about the periphery of the chuck.
Claim 68
Dependent Claim
15 words
The reactor of claim 48, wherein the guide inhibits hydrogen from mixing with dissociated intermediates.
Claim 69
Dependent Claim
17 words
The reactor of claim 48, wherein the guide directs the hydrogen around the periphery of the chuck.
Claim 70
Dependent Claim
17 words
The reactor of claims 1, 14 or 22, wherein a wafer pre-cleaner is associated with the chuck.
Claim 71
Dependent Claim
67 words
A transport deposition system (reactor) for making thin films comprising: a cracker that dissociates precursors; a deposition area; a chuck adapted to hold a wafer, said chuck located in said deposition area; a wafer pre-cleaner includes a source of one of ultraviolet or vacuum ultraviolet energy; and at least one of a moveable flow pattern adjuster located between the cracker and the chuck and a hydrogen membrane.
Claim 72
Dependent Claim
67 words
A transport deposition system (reactor) for making thin films comprising: a cracker that dissociates precursors; a deposition area; a chuck adapted to hold a wafer, said chuck located in said deposition area; a wafer pre-cleaner includes a source of one of ultraviolet or vacuum ultraviolet energy; and at least one of a moveable flow pattern adjuster located between the cracker and the chuck and a hydrogen membrane.
Claim 73
Dependent Claim
13 words
The reactor of claim 53, wherein the pre-cleaner includes a UV excimer laser.
Claim 74
Dependent Claim
15 words
The reactor of claim 53, wherein the pre-cleaner includes a source of incoherent excimer radiation.
Claim 75
Dependent Claim
14 words
The reactor of claims 1, 14 or 22, wherein the cracker contains a catalyst.
Claim 76
Dependent Claim
65 words
A transport deposition system (reactor) for making thin films comprising: a cracker having a catalyst selected from the group consisting of a dehydrogenation catalyst, a reforming catalyst and an oxidative dehydration catalyst that dissociates precursors; a deposition area; a chuck adapted to hold a wafer, said chuck located in said deposition area; and a moveable flow pattern adjuster located between the cracker and the chuck.
Claim 77
Dependent Claim
65 words
A transport deposition system (reactor) for making thin films comprising: a cracker having a catalyst selected from the group consisting of a dehydrogenation catalyst, a reforming catalyst and an oxidative dehydration catalyst that dissociates precursors; a deposition area; a chuck adapted to hold a wafer, said chuck located in said deposition area; and a moveable flow pattern adjuster located between the cracker and the chuck.
Claim 78
Dependent Claim
24 words
The reactor of claim 57, wherein the dehydrogenation catalyst is selected from the group consisting transition metal oxides and noble metals on acid supports.
Claim 79
Dependent Claim
23 words
The reactor of claim 57, wherein said catalyst is selected from the group consisting of noble metals or metal sulfide on active carbon.
Claim 80
Dependent Claim
28 words
The reactor of claim 57, wherein the catalyst is selected from the group consisting of Ga 13 , Cr 12 , GaAl 12 and Al 13 on PILCs.
Claim 81
Dependent Claim
18 words
The reactor of claim 57, wherein the catalyst comprises M--Al 2 O 3 where M is a lanthanide.
Claim 82
Dependent Claim
35 words
The reactor of claim 57, wherein the catalyst comprises Al 2 O 3 kneaded with Bi and Sb compounded with a metal selected from the group consisting of periodic table Group VIB & VIIB metals.
Claim 83
Dependent Claim
47 words
The reactor of claim 57, wherein the catalyst is selected from the group consisting of M-modified H-ZSM-5 and H-ZSM-11 where M is selected from the group consisting of Zn, Ga, Pt--Ga, Pt--Na, Mo, Cr, K, Ca, Mg, Al, and metals selected from periodic table Group VIII metals.
Claim 84
Dependent Claim
25 words
The reactor of claim 57, wherein the catalyst comprises M-modified MFI (H-GalloSilicates) where M is selected from the group consisting of Si/Ga, Na/Ga, and Al.
Claim 85
Dependent Claim
15 words
The reactor of claim 57, wherein the catalyst comprises a rare earth metal exchanged Y-zeolite.
Claim 86
Dependent Claim
17 words
The reactor of claim 57, wherein the catalyst comprises a rare earth metal exchanged ultra stable Y-zeolite.
Claim 87
Dependent Claim
15 words
The reactor of claim 57, wherein the catalyst comprises Ti oxide paired with Zr oxide.
Claim 88
Dependent Claim
28 words
The reactor of claim 57, wherein the catalyst comprises M plated onto aluminum, where M is selected from the group consisting of Ni, Cr, Ni/Cr, and Ni/Cr/Al alloys.
Claim 89
Dependent Claim
12 words
The reactor of claims 1 or 22, further comprising a hydrogen membrane.
Claim 90
Dependent Claim
21 words
The reactor of claims 1 or 22, further comprising a hydrogen membrane to permit separation of processed precursor from a by-product.
Claim 91
Dependent Claim
22 words
The hydrogen membrane of claim 69 wherein the hydrogen membrane contains pores with diameters between about 3 Å and about 5 Å.
Claim 92
Dependent Claim
31 words
The hydrogen membrane of claim 69 wherein the said hydrogen membrane comprises holes sufficiently small to permit by-products to pass through, but does not permit processed precursor molecules to pass through.
Claim 93
Dependent Claim
37 words
The reactor of claims 1, 14 or 22, wherein said precursor for the synthesis of fluorinated polymers comprises a compound with the structure: ##STR9## wherein Ar is a fluorinated aromatic moiety, and Y is a leaving group.
Claim 94
Dependent Claim
47 words
The reactor of claim 14, wherein said precursor for the synthesis of fluorinated polymers comprises a compound with the structure: ##STR10## wherein Ar is a non fluorinated phenylene moiety, Y is a leaving group, and said reactor utilizes at least one infrared radiation and vacuum ultraviolet radiation.
Claim 95
Dependent Claim
15 words
The reactor of claims 1, 14 or 22, wherein the cracker includes a free-radical initiator.
Claim 96
Dependent Claim
53 words
A reactor for transport polymerization or chemical vapor deposition comprising: a chamber, a gas injector associated with the chamber, a chuck located in the chamber and spaced from the gas injector, an energy source located adjacent to the gas injector, and a radiation source associated with the chamber wall to decompose exhaust gases.
Claim 97
Dependent Claim
53 words
A reactor for transport polymerization or chemical vapor deposition comprising: a chamber, a gas injector associated with the chamber, a chuck located in the chamber and spaced from the gas injector, an energy source located adjacent to the gas injector, and a radiation source associated with the chamber wall to decompose exhaust gases.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-07-11 | 2004-01-10 | 2004-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-07-11 | 2008-01-10 | 2008-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-07-11 | 2012-01-10 | 2012-07-11 | $7700.00 | Window Closed / Lapsed |